Read and answer carefully: A. Write the thermometer reading for each day of the week °C °C °C °C °C °C °C 50 50 50 50 50 50 50 40 40 40 40 40 40 40 30 30 30 30 30 30 30 -20 20 20 20 20 20 20 10 10 10 10 10 10 10 -10 -10 -10 -10 -10 -10 -10 Monday Tuesday Wednesday Thursday Friday Saturday Sunday 1. Monday 2. Tuesday 3. Wednesday 4. Thursday 5. Friday 6. Saturday 7. Sunday B. Read the problem and answer the questions that follow. Write only the letter of the correct answer. The temperature on Monday was 26°C. On Tuesday, the temperature was 3 degrees lower. Write down the temperature on Tuesday. 1. What is asked in the problem? A. The temperature on Monday B. The temperature on Tuesday C. The increase of temperature D. The decrease of temperature 11 2. What are the given facts in the problem? A. 26°C and 3°C B. 6°C and 3°C C. 2°C and 6°C D. 2°C and 3°C 3. What is the operation used to solve the problem? A. Addition C. Multiplication B. Division D. Subtraction 4. What is the number sentence of the problem? A. 26°C - 3°C =NC. 26°C x 3°C = N B. 26°C + 3°C =ND. 26°C ÷ 3°C = N 5. What is the answer to the problem? A. 78°C B. 56°C С. 29°С D. 23°C
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.
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