// Numbas version: finer_feedback_settings
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"u2": {"name": "u2", "group": "Ungrouped variables", "definition": "2775.4 + ((T2-280)*((2838.1-2775.4)/(320-280)))", "description": "<p>Specific internal energy</p>", "templateType": "anything", "can_override": true}, "s2": {"name": "s2", "group": "Ungrouped variables", "definition": "7.6299 + ((T2-280)*((7.7722-7.6299)/(320-280)))", "description": "<p>Specific entropy</p>", "templateType": "anything", "can_override": true}, "v3": {"name": "v3", "group": "Ungrouped variables", "definition": "0.3094", "description": "<p>Specific volume</p>", "templateType": "number", "can_override": false}, "h3": {"name": "h3", "group": "Ungrouped variables", "definition": "1439.89", "description": "<p>Specific enthalpy</p>", "templateType": "number", "can_override": false}}, "variablesTest": {"condition": "", "maxRuns": 100}, "ungrouped_variables": ["u1", "x1", "v1", "T2", "u2", "s2", "v3", "h3"], "variable_groups": [], "functions": {}, "preamble": {"js": "", "css": ""}, "parts": [{"type": "gapfill", "useCustomName": true, "customName": "a)", "marks": 0, "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>Quality $x$ and specific volume $v$ of Refrigerant R134a at $P$ = 2.8 bar and $u$ = {u1} kJ/kg:</p>\n<p>$x$ = [[0]]</p>\n<p>$v$ (m<sup>3</sup>.kg<sup>-1</sup>) =&nbsp; [[1]]&nbsp;</p>", "gaps": [{"type": "numberentry", "useCustomName": true, "customName": "Quality", "marks": 1, "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "minValue": "x1*0.99", "maxValue": "x1*1.01", "correctAnswerFraction": false, "allowFractions": false, "mustBeReduced": false, "mustBeReducedPC": 0, "precisionType": "dp", "precision": "3", "precisionPartialCredit": 0, "precisionMessage": "You have not given your answer to the correct precision.", "strictPrecision": false, "showPrecisionHint": true, "notationStyles": ["plain", "en", "si-en"], "correctAnswerStyle": "plain"}, {"type": "numberentry", "useCustomName": true, "customName": "Specific Volume", "marks": 1, "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [{"variable": "x1", "part": "p0g0", "must_go_first": true}], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "minValue": "v1*0.99", "maxValue": "v1*1.01", "correctAnswerFraction": false, "allowFractions": false, "mustBeReduced": false, "mustBeReducedPC": 0, "precisionType": "dp", "precision": "4", "precisionPartialCredit": 0, "precisionMessage": "You have not given your answer to the correct precision.", "strictPrecision": false, "showPrecisionHint": true, "notationStyles": ["plain", "en", "si-en"], "correctAnswerStyle": "plain"}], "sortAnswers": false}, {"type": "gapfill", "useCustomName": true, "customName": "b)", "marks": 0, "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>Specific internal energy $u$ and specific entropy $s$ of steam at $P$ = 0.3 MPa and $T$ = {T2} &deg;C:</p>\n<p>$u$ (kJ.kg<sup>-1</sup>) = [[0]]</p>\n<p>$s$ (kJ.kg<sup>-1</sup>.K.<sup>-1</sup>) = [[1]]</p>", "gaps": [{"type": 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