Question

Calculate the kinetic energy of 32g of oxygen gas at 27°C.​

Answer 1

Answer:

• 2494.2 Joules is the required kinetic energy.

Explanation:

According to the Question

It is given that,

• Mass of Oxygen ,m = 32g
• Temperature ,T = 27°C

Conversion of Unit

→ T = 27+273

→ T = 300K

we have to calculate the kinetic energy of oxygen .

Firstly we calculate the number of moles in 32 grams of oxygen .

Molar mass of Oxygen is 16 .

• n = Given Mass/Molar mass

substituting the value we get

↠ n = 32/16

↠n = 2 moles

Now, calculating the kinetic energy.

• KE = 3/2 nRT

where,

R denote Universal Gas Constant

↠ KE = 3/2 × 2 × 8.314 × 300

↠ KE = 8.314 × 300

↠ KE = 2494.2 J

• Hence, the Kinetic Energy of 32g oxygen will be 2494.2 J.

Answer 2

Answer:

2494.2 Joules is required kinetic energy.