18. Sugar melts at 367°F. What is the melting point of sugar on the Celsius scal

Question

18.

Sugar melts at 367°F. What is the melting point of sugar on the Celsius scale?

218° C

693° C

154° C

186° C

19.

Which material is the best conductor of heat?

copper

fiberglass

plastic foam

wood

20.

A thin, square metal plate measures 15 cm on each side and has emissivity of 0.80. The plate is heated to a temperature of 605°C. What is the rate at which the plate radiates energy ? The Stefan-Boltzmann constant is 5.67 × 10-8 W/(m2 K4). Remember that the plate will radiate energy from both its top and bottom surfaces.

900 W

980 W

1.2 kW

2.1 kW

18.

Sugar melts at 367°F. What is the melting point of sugar on the Celsius scale?

218° C

693° C

154° C

186° C

Explanation / Answer

here,

the melting of sugar is the temprature at which it melts

the sugar melts at 367 degree F

then we know,

celcius = (F - 32) * 5/9

celcius = (367 - 32)*5/9

celcius = 186 degree C

the melting point of sugar is 186 degree C

please ask different questions in different posts

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