Question

1) convert the following temperatures to the celsius scale.
i) 293 k ii) 470 k.
2) convert the following temperature to the kelvin scale.
i) 25°C ii) 373°C.​

Answer 1

Explanation:

a) 293 K = (293 – 273)

= 20 °C

b) 470 K = (470 – 273)

= 197 °C

a) 25° C

25° C = (25 + 273) K

= 298 K

b) 373° C

373° C = (373 + 273) K

Answer 2

Answer:

1)

I. 20 °C

II. 197 °C

2)

I. 298 K

II. 646 K

Explanation:

We know the relationship:

Temperature in Kelvin = Temperature in °C + 273

Substitute the given value in the equation and then calculate the other unknown value.

To change a temperature on the Kelvin scale to the Celsius scale we have to subtract 273 from the given temperature

a) 293 K = (293 – 273)

= 20 °C

b) 470 K = (470 – 273)

= 197 °C

Remember the relationship:

Temperature in Kelvin = Temperature in oC + 273

Substitute the given value in the equation and then calculate the other unknown value.

a) 25° C

25° C = (25 + 273) K

= 298 K

b) 373° C

373° C = (373 + 273) K

= 646 K