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1. ### From the following, select the process (or reaction) that is ENDOTHERMIC? PLEASE EXPLAIN HOW AND WHY.?

... leaves the second equation, which is the condensation of steam to liquid water. In order for that to happen the steam must give up heat, so the...

1 Answers · Science & Mathematics · 02/10/2017

2. ### Chemistry question on separation techniques?

Distil the mixture and condense the evolved steam.

1 Answers · Science & Mathematics · 19/09/2017

3. ### At 1 atm, how much energy is required to heat 37.0 g of H2O(s) at –14.0 °C to H2O(g) at 127.0 °C?

... : q4 = 2256 J/g x 37g = 83472 J 5) Raise temperature from steam at 100oC to 127 oC : q5 = 2.03 J/g x 37 g x ( 400 - 373...

3 Answers · Science & Mathematics · 04/10/2017

4. ### At 1 bar, how much energy is required to heat 85.0 g of H2O(s) at –14.0 °C to H2O(g) at 135.0 °C?

...g·°C)) x (85.0 g) x (135.0 - 100)°C = 5950 J to heat the steam to 135.0°C 2483.5 J + 28356 J + 35564 J + 191845 J...

2 Answers · Science & Mathematics · 18/09/2017

5. ### Would it turn into a fire hazard to put rubbing alcohol in a clothes iron to make steam with it?

1. If there's no ignition source, the autoignition temperature is 750oF -- I doubt an iron gets that hot. 2. Keep the windows open -- you'll put a lot of vapor in the air. 3. It won't work -- water and IPA vapors will solvate the...

6 Answers · Science & Mathematics · 07/08/2017

6. ### At 1 atm, how much energy is required to heat 51.0 g of H2O(s) at –16.0 °C to H2O(g) at 139.0 °C?

...boil the water. The fifth step is to increase the temperature of the steam from 100˚ to 139˚C. The constants that ...

2 Answers · Science & Mathematics · 21/07/2017

7. ### Given that the specific heat capacities of ice and steam are 2.06 J/g°C and 2.03 J/g°C?

...17.7 g) / (18.0 g/mol) = 17.7/18.0 mol For the change of 232°C steam to 100°C steam : Heat lost = m c ΔT = 17.7 × 2.03...

1 Answers · Science & Mathematics · 19/07/2017

8. ### Please help me!!! How many moles of CO2 are produced when 5.45 mol of ethane are burned in an excess of oxygen?

(5.45 mol C2H6) x (4 mol CO2 / 2 mol C2H6) = 10.9 mol CO2

2 Answers · Science & Mathematics · 06/07/2017

9. ### How is heat transferred to water from surroundings, surroundings to water, and no transfer in these examples?

... FROM the water TO the surroundings when... a cloud of steam CONDENSES into liquid water Heat is transferred ...

1 Answers · Science & Mathematics · 02/07/2017

10. ### Does water in a tea kettle evaporate if left with fire on for a long time or does the water just keep boiling?

All of the liquid water will turn to vapor state water (steam) eventually. At that point, the kettle will continue to heat up. While the...

10 Answers · Science & Mathematics · 31/07/2017