Question

1. Why is the density of solids remain constant for minor changes in temperature ?
2.) 75ms-1=______ kmh-1

Answer 1

1. The density of solids remain constant for minor changes in temperature because the particles of solids are closely packed with each other.

2. 75m-1 = 270 kmh-1

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Answer 2

Answer:

1.The temperature of a body is the average kinetic energy of the molecules present in it. So, when heat is supplied ( or temperature is increased) the average kinetic energy increases which increases the volume and thus density decrease

2. Km/hr