Which of the following is not a standard condition (STP) for gas measurements?

In which of the following processes does the energy of the water decrease?

A helium balloon initially at room temperature is dunked into a bucket of liquid nitrogen (T=77K).  Which of the following will occur? 

Which of the following pairs of gases would diffuse at essentially the same rate?

Moving water from the mile high city, Denver Colorado, to Sterling Illinois will have what effect on its boiling point?

Which of the following does not affect the rate of evaporation of a liquid? 

Decreasing the pressure on a gas at constant temperature does what to the volume of the gas?

A gas sample collected at 35.0°C and a pressure of 0.934 atm has a volume of 200 mL. The temperature and pressure are changed, and the gas is compressed to 150 mL. The new temperature is 40.0°C; what is the new pressure?

Low thermal expansion is a characteristic of which state of matter?

Suppose that during the Millikan oil drop experiment you measured the radius on an oil droplet of 6.13 × 10-6 m. Use the equation below to find the mass of the droplet.