A steel plate has a hole in it with a diameter of exactly1.0 cm when the plate is at a temperature of 20°C. A steelring has an inner diameter of exactly 1.0 cm at 20°C. Boththe plate and the ring are heated to 100°C. Which statement is true?(a) The hole in the plate gets smaller, and the opening inthe ring gets larger.(b) The opening in the ring gets larger, but we need therelative size of the plate and the hole to know whathappens to the hole.(c) The hole in the plate and the opening in the ring getlarger.(d) The hole in the plate and the opening in the ring getsmaller.(e) The hole in the plate gets larger, and the opening inthe ring gets smaller
Energy transfer
The flow of energy from one region to another region is referred to as energy transfer. Since energy is quantitative; it must be transferred to a body or a material to work or to heat the system.
Molar Specific Heat
Heat capacity is the amount of heat energy absorbed or released by a chemical substance per the change in temperature of that substance. The change in heat is also called enthalpy. The SI unit of heat capacity is Joules per Kelvin, which is (J K-1)
Thermal Properties of Matter
Thermal energy is described as one of the form of heat energy which flows from one body of higher temperature to the other with the lower temperature when these two bodies are placed in contact to each other. Heat is described as the form of energy which is transferred between the two systems or in between the systems and their surrounding by the virtue of difference in temperature. Calorimetry is that branch of science which helps in measuring the changes which are taking place in the heat energy of a given body.
A steel plate has a hole in it with a diameter of exactly
1.0 cm when the plate is at a temperature of 20°C. A steel
ring has an inner diameter of exactly 1.0 cm at 20°C. Both
the plate and the ring are heated to 100°C. Which statement is true?
(a) The hole in the plate gets smaller, and the opening in
the ring gets larger.
(b) The opening in the ring gets larger, but we need the
relative size of the plate and the hole to know what
happens to the hole.
(c) The hole in the plate and the opening in the ring get
larger.
(d) The hole in the plate and the opening in the ring get
smaller.
(e) The hole in the plate gets larger, and the opening in
the ring gets smaller
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