Question

Karen measures the volume of gas at 200 K and 100 kPa. To correct her measurement to standard temperature and pressure (STP), what must she do?

A. make a volume correction based on a higher temperature of 273 K
B. make a volume correction based on a higher pressure to 200 kPa
C. make a volume correction based on a lower temperature of 73 K
D. make a volume correction based on a lower pressure of 50 kPa

Answer 1

Answer : The correct option is, (A)

Explanation :

At STP (standard temperature and pressure), the temperature is 273 K and pressure is 1 atm or 101 KPa.

Karen measures the volume of gas at 200 K and 100 KPa.

From this we conclude that the pressure of the gas are approximately equal. So, to correct her measurement to standard temperature and pressure (STP), she should make a volume correction based on a higher temperature of 273K.

Hence, the correct option is, (A) make a volume correction based on a higher temperature of 273 K

Answer 2

I believe the correct answer from the choices listed above is option A. To correct her measurement to standard temperature and pressure (STP), she should make a volume correction based on a higher temperature of 273 K. Hope this answers the question. Have a nice day.