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  1. //  Elaine Torrez                                         Chapter 4 P. 224, #20
  2. /**************************************************************************
  3.  * FREEZING AND BOILING POINTS
  4.  * ------------------------------------------------------------------------
  5.  * This program asks the user to enter a temperature in Fahrenheit.
  6.  * It then displays which substances will freeze and which will boil 
  7.  * at that temperature. The substances checked are:
  8.  * Ethyl alcohol, Mercury, Oxygen, and Water.
  9.  * ------------------------------------------------------------------------
  10.  * INPUT
  11.  *   temperature : The temperature entered by the user (°F)
  12.  *
  13.  * OUTPUT
  14.  *   Statements indicating whether each substance will freeze or boil
  15.  *   at the entered temperature.
  16.  **************************************************************************/
  17.  
  18. #include <iostream>
  19. using namespace std;
  20.  
  21. int main()
  22. {
  23.     double temperature;   // User input temperature in Fahrenheit
  24.  
  25.     // Prompt user for input
  26.     cout << "Enter a temperature in Fahrenheit: ";
  27.     cin >> temperature;
  28.  
  29.     // Check Ethyl alcohol
  30.     if (temperature <= -173)
  31.         cout << "Ethyl alcohol will freeze.\n";
  32.     if (temperature >= 172)
  33.         cout << "Ethyl alcohol will boil.\n";
  34.  
  35.     // Check Mercury
  36.     if (temperature <= -38)
  37.         cout << "Mercury will freeze.\n";
  38.     if (temperature >= 676)
  39.         cout << "Mercury will boil.\n";
  40.  
  41.     // Check Oxygen
  42.     if (temperature <= -362)
  43.         cout << "Oxygen will freeze.\n";
  44.     if (temperature >= -306)
  45.         cout << "Oxygen will boil.\n";
  46.  
  47.     // Check Water
  48.     if (temperature <= 32)
  49.         cout << "Water will freeze.\n";
  50.     if (temperature >= 212)
  51.         cout << "Water will boil.\n";
  52.  
  53.     return 0;
  54. }
  55.  
  56.  
Success #stdin #stdout 0.01s 5284KB
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Enter a temperature in Fahrenheit: Oxygen will boil.
Water will freeze.
https://ideone.com/TvQtOj
language:
C++ (gcc 8.3)
created:
4 days ago
visibility:
public

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