A 648-g empty iron kettle is put on a stove. How much heat. in joules. must it absorb to raise its temperature from 15.0°C to 37.0°C?
(The specific heat for iron is 113 cal/kg•C°, 1 cal = 4.190 J)
A) 6740 J
B) 11,300 J
C) 1610 J
D) 16,100 J
A
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A conductor is placed in an electric field under electrostatic conditions. Which of the following statements is correct for this situation?
A) The electric field is zero inside the conductor. B) All valence electrons go to the surface of the conductor. C) The electric field on the surface of the conductor is perpendicular to the surface. D) All of the other answers apply.
Each of the following general equations illustrates what basic type of chemical reaction?
a. AB + CD ? AD + CB ______________ b. A + B ? AB ______________ c. A + BC ? AC + B ______________ d. AB ? A + B ______________
A huge bull's-eye formation is a distinctive feature of Jupiter's moon ______________
Fill in the blank(s) with correct word
The contact angle for a water droplet on wax is 112°. Assume that the surface tension for wax 0.023 N/m. What is the value of the interfacial tension between water and wax at 25°C?
What will be an ideal response?