Question

6. A certain freezing process requires that room temperature be lowered from 40°C at
the rate of 5°C every hour. What will be the room temperature 10 hours after the
ter
process begins?​

Answer 1

Answer:

The present room temperature = 40\degree C40°C

The room temperature decreasing every hour by rate of = 5\degree C5°C

The room temperature after 10 hours will be

= 40\degree C\ +\ 10\times\left(-5\degree C\right)40°C + 10×(−5°C)

= 40\degree C-50\degree C\40°C−50°C

= -10\degree C−10°C

so, the room temperature after 10 hour = -10\degree C−10°C

Answer 2

★★ Required Answer ★★

◍Given :-

• Room temperature = 40°c

• Change in temperature 1 hr = -5 °c

◍To Find :-

• Room temperature after 10 hours

◍Solution :-

:. Temperature in 10 hrs = 10 × -5

Actual temperature after 10 hrs = 40 + -50°c = -10°c

:. Therefore Temperature after 10 hrs is -10°c.

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