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CH -5 HEAT I SCIENCE MAHARASHTRA BOARD PYQ ONE SHOT 10TH SSC #VIRAL VIDEO #IMP QUESTION SRIKANT SIRCH -5 HEAT I SCIENCE MAHARASHTRA BOARD PYQ ONE SHOT 10TH SSC #VIRAL VIDEO #IMP QUESTION By SRIKANT SIR
Question 1 heat
Observe the following graph. Considering the change in volume of water as its temperature is raised from 0 °C, discuss the difference in the behaviour of water and other substances. What is this behaviour of water called?
Question 2
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Draw a neat labelled diagram of Hope’s apparatus. Explain how this apparatus can be used to demonstrate anomalous behaviour of water. Draw a graph of temperature of water against time.
Answer:
Maharashtra Board Class 10 Science Solutions Part 1 Chapter 5 Heat 8
Q3
Define specific heat capacity and state its SI unit Answer: The amount of heat energy required to raise the temperature of a unit mass of an object by \(1^{\circ }\text{C}\) is called the specific heat or specific heat capacity of that object. The SI unit of specific heat capacity is \(\text{J/kg}^{\circ }\text{C}\) or \(\text{J}\cdot \text{kg}^{-1}\cdot \text{K}^{-1}\).
Question 4
7. Explain the following temperature vs time graph
Answer: The given temperature v/s time graph demonstrates the behaviour of water when heated continuously and uniformly. 
Segment AB: The temperature of the ice remains constant at 0∘C0 raised to the composed with power C0∘C for a period of time (about 4 minutes). The heat supplied is the latent heat of fusion used entirely to change the state from solid (ice) to liquid (water) at 0∘C0 raised to the composed with power C0∘C. 
Segment BC: The temperature of the water continuously rises from 0∘C0 raised to the composed with power C0∘C to 100∘C100 raised to the composed with power C100∘C as heat is absorbed. 
Segment CD: At point C, the water reaches its boiling point of 100∘C100 raised to the composed with power C100∘C. The temperature remains unchanged during this phase as the heat energy (latent heat of vaporisation) is used to convert water into steam at 100∘C100 raised to the composed with power C100∘C. 
Ans:
Answer: The provided text is a complete explanation of the temperature versus time graph shown in the image.
i. The graph shows the behavior of water when heated uniformly. 
ii. Segment AB shows ice melting into water at a constant 0∘C0 raised to the composed with power C0∘C. 
iii. Segment BC shows the temperature of the water rising from 0∘C0 raised to the composed with power C0∘C to 100∘C100 raised to the composed with power C100∘C.
iv. Segment CD shows water turning into steam at a constant 100∘C100 raised to the composed with power C100∘C.
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