If the temperature is lowered from 60 degree C to 30 degree C. the volume of a f

Question

If the temperature is lowered from 60 degree C to 30 degree C. the volume of a fixed amount of gas will be one half the original volume True False The value of E^delta for a system that performs 139 kJ of work on its surroundings and gains of heat is -85 193 7506 85 -193 Petroleum is a liquid composed of hundreds of compounds True False The delta_H for the solution process when solid sodium hydroxide dissolves in water is 44 4 kJ/mol When a 12.6-g sample of Na OH dissolves in 250.0 g of water in a coflic-cup calorimeter, the temperature increases from 23.0 degree C. Assume that the solution has the same specific heat as liquid water, i e, 4.18 J0/g-K35.2 24.0 36.4 35.7 40.2 Zinc reacts with aqueous sulfuric acid to form hydrogen gas In an experiment. 201 ml. of wet Hi is collected over water at 27 X and a barometric pressure How many grams of Zn have been consumed0 The vapor pressure of water at 27 degree C IS 26.74 torr

Explanation / Answer

1. True ( V is directly proportional to T) charles law

Question 28:

Delt E= heat + work= 139+54 = 193 KJ

Question 29:

True

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