Question

A volume of 80.0ml of hydrogen was collected at standard conditions. At what pressure would the volume be 100ml, temperature constant?

Answer 1

The pressure would be 0.8 times the initial pressure at standard conditions. To find the pressure at a volume of 100 mL while the temperature is constant, we can use the ideal gas law equation PV = nRT and rearrange it to solve for P2 with the given values.

Step-by-step explanation:

To answer this question, we can use the ideal gas law equation:

PV = nRT. In this equation, P represents pressure, V represents volume, n represents the number of moles of gas, R is the ideal gas constant, and T is the temperature in Kelvin.

Since the volume is increasing from 80.0 mL to 100 mL while the temperature and number of moles of hydrogen remain constant, we can set up the following equation:

P1V1 = P2V2

Plugging in the given values, we get:

(P1)(80.0 mL) = (P2)(100 mL)

To find the pressure (P2), we can rearrange the equation and solve for P2:

P2 = (P1)(V1) / V2

= (80.0 mL) / (100 mL)

= 0.8P1

Therefore, the pressure would be 0.8 times the initial pressure at standard conditions.