Change the following celsius temperature to kelvin scale [2 MARKS]

(i) – 273°C
(ii) – 100°C
(iii) – 40°C
(iv) + 30°C

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Solution

Solution: 0.5 marks each

In the Kelvin scale –

(i) – 273°C + 273 = 0 K

(ii) – 100°C + 273 = 173 K

(iii) – 40°C + 273 = 233 K

(iv) + 30°C + 273 = 303 K

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Change the following celsius temperature to kelvin scale.

(i) – 273°C
(ii) – 100°C
(iii) – 40°C
(iv) + 30°C

Convert the following Celsius temperature to kelvin scale

(i)

- 273^{0} C

(ii)

30^{0} C

(iii)

{- 100}^{0} C

(iv)

{- 40}^{0} C

Q. Assertion :Temperature below

0^{0} C

are possible in Celsius scale but in Kelvin scale, negative temperature is not possible. Reason: The Kelvin scale is related to Celsius scale as follows : K =

^{0} C

- 273.15.

Kelvin scale of temperature is regarded as a better scale than Celsius. Why? [2 MARKS]

Will the value of Specific latent heat of fusion of a Substance change if the temperature scale is changed from Celsius scale to Fahrenheit scale and from Celsius scale to kelvin scale ?

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Change the following celsius temperature to kelvin scale [2 MARKS] (i) – 273°C (ii) – 100°C (iii) – 40°C (iv) + 30°C

Solution: 0.5 marks each In the Kelvin scale – (i) – 273°C + 273 = 0 K (ii) – 100°C + 273 = 173 K (iii) – 40°C + 273 = 233 K (iv) + 30°C + 273 = 303 K

Change the following celsius temperature to kelvin scale [2 MARKS]

(i) – 273°C
(ii) – 100°C
(iii) – 40°C
(iv) + 30°C

Solution: 0.5 marks each

In the Kelvin scale –

(i) – 273°C + 273 = 0 K

(ii) – 100°C + 273 = 173 K

(iii) – 40°C + 273 = 233 K

(iv) + 30°C + 273 = 303 K