1. A 1.50-kg iron horseshoe initially at 550°C is dropped into a bucket containi

Question

1. A 1.50-kg iron horseshoe initially at 550°C is dropped into a bucket containing 19.0 kg of water at 26.0°C. What is the final temperature of the water–horseshoe system? Ignore the heat capacity of the container and assume a negligible amount of water boils away.

2. How much energy is required to change a 45.0-g ice cube from ice at -8.0°C to steam at 108°C?

#1,2 please and thanks

10 points My Notes dropped the heat egligibl ter b terng Remember that the heat lost by the horseshoc is gained by the water. C Need Help? Read Mauer -10 points SerPU My Note d to change Need Help? Road Submit Ansaar Save Frogress Practica Another varon i10 points ScrFD My Notes A 2.20-g lead bullet at 20.0°C is fired at a speed of 220 m/s into a large block of ice at U C. in which it becomes embedded. What cuantity of ice melts? Need Help? Readil 10 points SerF0F5 My Notes An Ideal gas Is anclosac In a cyllndan with a movable plston on top of it. The plston has a mass of 25 g and an area of 5.50 cm anc ls frac to sllda up and cown, ng the pre of the gas constant. How much wark Is conc on tha gas as the temperat of 0.210 mol of the gas is raised from 25.0 c to 320 c? Need Help? Raad

Explanation / Answer

Q1.

Q out of the iron = Q into water

where Q = m*c*T

Tf = mH20*cH20*Tc + mFe*cFe*Th / mH20*cH20+mFe*cFe

= (19*4186*26 + 1.5*448*550)/(19*4186+1.5*448)

= 30.4 deg C

Please post other question separately.

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