1. What is the term for a process causing the particles contained in a substance to be packed more closely together?
A. coefficient of expansion
B. contraction
C. expansion
D. packing
E. squeezing

2. A one liter sample of gas is heated under constant pressure from
100°C to 200°C. Its volume increases to 1.27 liters. On further
heating to 300°C, what would the volume of the sample be?
A. 1.00 liter
B. 1.27 liters
C. 1.54 liters
D. 1.81 liters

3. A 5-liter sample of gas initially at 50°C is observed to expand to
5.5 liters when the temperature is raised to 100°C. After further
increase in temperature, the volume is 6 liters. What is the
approximate temperature (within 50 degrees) of the final state of
the gas?
A. 50°C
B. 100°C
C. 150°C
D. 200°C
Please help