3 years ago

Identify each statement as an example of melting or sublimation,

Physics

1 answer:

xeze [42]3 years ago

5 0

1st is sublimation

2and is melting

3red is melting

4th is sublimation

sublimation is just "skipping" the liquid phase / state

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Four hundred seventy joules of heat are removed from a heat reservoir at a temperature of 470 K. What is the entropy change of t

11111nata11111 [884]

Answer:

ΔS= -1 J/K

Explanation:

Given data

Heat Q= -470J

Temperature T=470 K

To find

Entropy change ΔS

Solution

We know that the entropy change of system is ΔS is given by

ΔS=Q/T

We have take heat value Q as negative because the heat is removed from heat reservoir

ΔS=(-470J/470K)

ΔS= -1 J/K

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A toaster oven indicates that it operates at 1500 W on a 110 V

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The answer is: A. 8.06 ohm

ok done. Thank to me :>

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