A brass cube,10 cm on a side,is raised in temperature by 150°C.The coefficient of volume expansion of brass is 57 × 10−⁶/°C.By what percentage is any one of the 10-cm edges increased in length? A) 4% B) 2.8% C) 0.38% D) 0.29%

Question

Quizplus · Accepted Answer

The linear expansion coefficient is approximately one-third of the volume expansion coefficient. Therefore, the percentage increase in length is 57 × 10^-6 / 3 × 150 = 0.29%.

A Brass Cube,10 Cm on a Side,is Raised in Temperature