1. If 1.2L of gas are at 745 mmHg and 23.5C, how many moles of gas are present?

2.
What is the pressure of 3.9 L of H2S if n=1.36 mil and the temperature is 22.5degrees C

y is less than or equal to three more than the product of x and negative two thirds standard form

Explanation:

a gas, having a molecular weight of 13 kg/kmol and a kinematic viscosity of 0.25 cm2/s, flows through a pipe 0.25 m internal diameter and 5 km long at the rate of 0.4 m3/s and is delivered at atmospheric pressure.