Matter In Our Surroundings

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Question
CBSEENSC9004630

Convert the following temperature to Celsius scale.

300K

Solution

To change a temperature on the kelvin scale to the celsius scale. Subtract 273 form given temperature.

300 K = 300 - 273 = 27°C

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Question
CBSEENSC9004631

Convert the following temperature to Celsius scale.

573 K

Solution

To change a temperature on the kelvin to celsius. Subtract 273 from given temperature.

573 K = 573 – 273 = 300°C

Question
CBSEENSC9004632

Convert the following temperatures to Kelvin scale

25°C

Solution

To change a temperature on the celsius to kelvin. Add 273 to given temperature. i.e.,
25°C = 25 + 273 = 298K

Question
CBSEENSC9004633

What is the physical state of water at

100 °C

Solution

At 1000C water is in vapoues phase.