Question

A 1-L sample of CO initially at STP is heated to 546 K, and its volume is increased to 2 L. What is the initial temperature of the CO sample, assuming STP (Standard Temperature and Pressure)?

a) 273 K
b) 546 K
c) 298 K
d) 0 K

Answer 1

The initial temperature of the CO sample, assuming STP, is 298 K (c).

Step-by-step explanation:

When the 1-L sample of CO is heated to 546 K and its volume is increased to 2 L, the changes have no effect on the number of collisions of the molecules of the gas per unit area of the container wall.

This is because the number of molecules in the sample remains constant and the temperature and volume changes do not affect the total number of collisions. Therefore, the initial temperature of the CO sample, assuming STP, is 298 K (c) .