RATE OF REACTIONS. The reaction rate (rate of reaction) or speed of reaction for a reactant or product in a particular reaction is intuitively defined as how fast or slow a reaction takes place. For example‚ the oxidative rusting of iron under the atmosphere is a slow reaction that can take many years‚ but the combustion of cellulose in a fire is a reaction that takes place in fractions of a second (right). Chemical kinetics is the part of physical chemistry that studies reaction rates. The concepts
Premium Chemical kinetics Reaction rate Chemical reaction
Birth order has been shown to have a small effect on educational motivation and achievement‚ even after dealing with confounds such as social status (Marjoribanks‚ 2003). The bulk of research suggests that being the first born in a family has positive implications. In addition to seeming to have an impact on academic motivation‚ being first born may also have an impact on creativity (Baer‚ Oldham‚ Hollingshead‚ & Jacobsohn‚ 2005). Firstborn’s also seem to be more heavily represented in academically
Premium Birth order Alfred Adler Educational psychology
5.0 Contents 8 5.1 Factor That Effect Exchange Rates in Long Run 8 5.2 Exchange rates in short run (A supply and demand Analysis) 10 5.3 Factor that determinant exchange rate 11 5.3.1 Shift the demand for domestic assets 11 5.4 Other Factors that effects exchange rates and its volatility 12 5.4.1 International financial crises 12 5.4.2 Speculators effect 12 5.4.3 Central bank intervention policy 13 5.2 The effects of exchange rate and volatility 14 5.2.1 International trade‚ export
Premium Exchange rate Foreign exchange market International trade
Heart rate investigation Research statement: To investigate‚ how diabetes affect a person’s heart rate during physical exercise. Background information: Heart rate : Heart rate is the number of time a persons heartbeats per unit of time‚ usually measured in BPM (beats per minute). Heart rate is measured by finding the pulse on body‚ usually taken from carotid artery‚ which supplies blood to the head and the neck and radial artery‚ which Is located on your wrist below your thumb
Premium Heart rate Insulin Digestion
The society as a whole is worse off. This is because cash is the financial asset and it becomes is a liability of the government upon the time you found the cash. So‚ the taxpayers will have to make up for the government liability. 2. The average rate of return on investment in large stocks has outpaced that on investments in T-Bills by about 8% since 1926 in US. Why‚ then‚ does anyone invest in T-Bills? Answer: This is because T-bill is regarded as an almost risk free asset as it is backed
Premium Investment Interest Rate of return
Interest Rates An interest rate is the rate at which interest is paid by borrowers for the use of money that they borrow from a lender. Specifically‚ the interest rate is a percent of principal paid a certain amount of times per period. Small companies often borrow capital from banks to buy new assets for its business‚ and in return the lender receives interest at a predetermined interest rate for deferring the use of funds and instead lending it to the borrower. Interest rates are
Free Monetary policy Inflation Federal Reserve System
Teen Birth Control Usage Do you think birth control pills should be available to teenage girls without a prescription? Over the years teenage pregnancy has increased tremendously. As a result‚ causing abortions or high school dropouts. In my opinion birth control should be sold over the counter to prevent teenage pregnancy. I am in favor of the pill being given to teens because there have been many researches done that shows good benefits of teens being on the pill‚ but there are people who may
Premium Pregnancy Combined oral contraceptive pill Birth control
exchange rates‚ which is useful for international finance assignment. Exchange Rate is the price of one country’s currency in terms of another country’s currency; the rate at which two currencies are traded for another. It measures the number of units of one currency which exchange‚ in the foreign exchange market for one unit of another. Exchange rates are important because‚ they establish the relationships between the different currencies or monetary units of the world. Exchange rates have been
Premium Foreign exchange market Exchange rate Central bank
’Exchange Rate’ The price of a nation’s currency in terms of another currency. An exchange rate thus has two components‚ the domestic currency and a foreign currency‚ and can be quoted either directly or indirectly. In a direct quotation‚ the price of a unit of foreign currency is expressed in terms of the domestic currency. In an indirect quotation‚ the price of a unit of domestic currency is expressed in terms of the foreign currency. An exchange rate that does not have the domestic currency
Premium Currency International trade United States dollar
Aim: To determine the effect of altering concentration (mol dm-3) of hydrochloric acid (HCl) on the rate of reaction (mol dm-3 s-1) for the following chemical reaction: CaCO3(s) + HCl(aq) CaCl2(s) + H2O(l) + CO2(g) Research question: How does altering concentration (mol dm-3) of hydrochloric acid (HCl) affect the rate of reaction (g/s) for the following reaction: CaCO3(s) + HCl(aq) CaCl2(s) + H2O(l) + CO2(g) Background information: The reaction between calcium carbonate and hydrochloric acid
Premium Chemical reaction Carbon dioxide Reaction rate