Ethylene glycol,used as a coolant in automotive engines,has a specific heat capacity of 2.42 J/(g·K).Calculate q when 3.65 kg of ethylene glycol is cooled from 132°C to 85°C.

Question

Quizplus · Accepted Answer

The heat transfer (q) can be calculated using the formula q = m * c * ΔT, where m is the mass, c is the specific heat capacity, and ΔT is the change in temperature. Here, m = 3650 g, c = 2.42 J/(g·K), and ΔT = 85°C - 132°C = -47°C. Thus, q = 3650 g * 2.42 J/(g·K) * (-47 K) = -416,709 J = -416.709 kJ, which is approximately -420 kJ.

Ethylene Glycol,used as a Coolant in Automotive Engines,has a Specific ×\times×

Ethylene Glycol,used as a Coolant in Automotive Engines,has a Specific $\times$