Molecular Physics | Thermodynamics Answers

Potassium chlorate is often used to generate oxygen gas in high school laboratory. If 183.7g of KClO3 is completely burnt catalytically, what volume of oxygen gas will be obtained at 39 celsius and 1200 torr pressure?

The value of ΔH for cooling 2 mole of an ideal monoatomic gas from 225°C to 125°C at constant pressure will be given Cp = 5/2 R

The work done when two mole of an ideal gas is compressed from a volume of 5 m3 to 1 dm3 at 300 K, under a pressure of 100 kPa is

a 200g calorimeter can contains 150 g of oil at 20 degree c. to the oil is added 80 g of aluminum at 300 degree c. what will the temperature of the system after equilibrium is established? (specific heat of copper = 0.093 cal/cG degree, aluminum = 0.21 cal/gC degree, oil = 0.37 cal/gC degree

The fundamental interval of a thermometeric scale is

100g of 0°C ice mixed with 300g of 25°C water. Find temperature of mixture ?

The options are:
a) -5/3°C
b) -5/2°C
c) -5°C
d) 0°C
The correct answer is 0°C while I got answer -5/4°C by using heat gained = heat lost formula. Please help!!!!

1/ A gas is compressed from 400 cm3 to 200 cm3 at a constant pressure of
100 kPa. At the same time, 100 J of heat energy is transferred out of the
gas. What is the change in internal energy of the gas during this process?

Hydrogen is heated in a vessel to a temperature of 10,000 K . Let each molecule possess an average energy E1 . A few molecules escape into the atmosphere at 300 K. Due to collisions, their energy changes to E2. Calculate ratio E1/E2.

At 0 degree celcius the pressure of the gas in constant volume gas thermometer is 30cm Hg. Calculate the temperature when the pressure of the gas is 50 cm of Hg

At 0 degree celcius the pressure of the gas in constant volume gas thermometer is 30cm Hg. Calculate the temperature when the pressure of the gas is 50 cm of Hg