Question

Peter is working on repairs of an old house. He has left a bottle of water, some metal nails,

and a piece of wood inside the boot of his car. After the car has been out in the sun for three

hours, the temperature inside the car reaches about 40 oC.

i) What happens to the objects in the car? Write “Yes” or “No” for each statement.

Does this happen to the object(s)? Yes or No?

a) They all have the same temperature

b) After some time the water begins to boil.

c) After some time the metal nails begin to glow red.

ii) For drinks during the day, Peter has a cup of hot coffee, at a temperature of about

90 oC, and a cup of cold mineral water, with a temperature of about 5 oC. The cups

are of identical type and size and the volume of each drink is the same. Peter

leaves the cups sitting in a room where the temperature is about 20 oC.

What are the temperatures of the coffee and the mineral water likely to be after

sometime?

A. 70 oC and 10 oC B. 90 oC and 5 oC

C. 70 oC and 25 oC D. 20 oC and 20 oC

Answer 1

Answer:

hope it helps you

Explanation:

first-b and second-D