What is the volume of ethanol required to heat 200.0 g200.0 g of water by 10.0 ∘C?10.0 ∘C? The density of ethanol is 0.78 g/mL.
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What is the volume of ethanol required to heat 200.0 g200.0 g of water by 10.0 ∘C?10.0 ∘C? The density of ethanol is 0.78 g/mL.
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- How long would it take a persons with an average body (surface area of 1.8 m^2 and normal body temperature of 37◦C) to heat up a room (which hold 2700 moles of air) from 16.370◦C to 16.373◦C?A cube of ice is taken from the freezer at -8.8°C and placed in a 104 g iron cup filled with 279 g of water. Both the water & the cup are at 23.9°C. Eventually the system reaches thermal equilibrium at 12.4°C. Determine Qcup, Qwater (for the water initially in the cup), Qice, & the mass of the ice.Qcup = Qwater = Qice = mice =A silver block, initially at 56.9 ∘C∘C, is submerged into 100.0 gg of water at 24.1 ∘C∘C, in an insulated container. The final temperature of the mixture upon reaching thermal equilibrium is 27.4 ∘C∘C. What is the mass of the silver block? Express your answer to two significant figures and include the appropriate units.
- A steel rod 30.0 m long, installed when the temperature was 10°C, is in a bridge that heats up to 40oC on a hot summer day. Steel's coefficient of linear expansion is 1.2 × 10-5 K-1. The bridge is built so the rod has an expansion space of 5 cm. Is this enough space? What is the increase in the length of the rod, in mm?A certain substance has a mass per mole of 41 g/mol. When 315 J is added as heat to a 33.0 g sample, the sample's temperature rises from 27.0°C to 41.0°C. What are the (a) specific heat and (b) molar specific heat of this substance? (c) How many moles are present? (a) Number Units (b) Number Units (c) Number UnitsSteam at 100°C is condensed into a 62.0 g brass calorimeter cup containing 220 g of water at 21.0°C. Determine the amount of steam (in g) needed for the system to reach a final temperature of 48.0°C. The specific heat of brass is 380 J/(kg · °C).