The pressure in a car tire is 178 kPa at 37°C. After a long drive, the pressure is 275 kPa. What is the new temp of the air in the tire, assuming the volume is constant?

T₂ = 478.93 K

Explanation:

Given that,

Initial pressure, P₁ = 178 kPa

Initial temperature, T₁ = 37°C = 310 K

Final pressure, P₂ = 275 kPa

We need to find the new temp of the air in the tire, assuming the volume is constant. We know that,

So, the new temperature is equal to 478.93 K.

89.7%

Explanation:

Percentage yield is the ratio of the actual yield of a product to the theoretical yield of a product  expressed as a percentage.

Percentage yield =  x 100

Given,

Actual yield of a product = 2.80 g

Theoretical yield of a product = 3.12 g

Percentage yield =  x 100 = 89.7 %